You might want to try using heavy and in your rear bag but use beach sand or similar for the ears. In the front bag I'd use just beach or similar sand because the heavy sand can end up packing as hard as a brick and you can start throwing some of your shots. I shoot competition and I've heard many guy's say what I'm saying.Biggabe said:Was wondering if anyone has a source for some chromite or heavy sand. I know Sinclair and some of the other benchrest sights sell the heavy sand but thought I'd try to get enough to fill a few bags verses the 15 pounds they usually sell. Thanks.